Patent GB-181072-A (GB)
Title: Improvements in cash registers
IPC: G06C11/08
Filed: 1921-02-26
Abstract: 181,072. Haddan, A. J. H., (National Cash Register Co.). Feb. 26, 1921. Web - feeding arrangements.- In a key-set independently-operated cash register, the items characterizing each transaction are printed upon the usual recordstrip and are recorded by perforations upon another paper band which at the close of the day may be removed from the machine and run through an auditing machine such as is described in Specification 184,824, [Class 106 (i), Calculating &c.], in order that the items may be registered upon the totalizers concerned. The items are also printed upon the band to facilitate inspection and interpretation of the perforations. The band is traversed by means of a pin roller 243 the pins of which engage marginal holes in the band. These holes are twice as numerous on one edge as on the other to ensure correct insertion of the band, both in this machine and in the auditing machine. The wheel 243 is driven at each operation of the machine by Geneva mechanism and is geared with the winding-on roller through friction means (described below) to keep the band taut. The band and its various supporting and driving rollers are mounted upon a carriage slidable into and out of the machine for renewable purposes, upon channelled ways 412, and means are provided for preventing operation of the machina whenever the carriage is not in place or no record band is present. The carriage slides in grooved bars 411, which are also slidably mounted in the fixed bars 412 and have a limited travel therein as determined by a pin and groove connection. The carriage is retained in position in the machine by a lever 515, Fig. 8, which embraces a fixed pin 516 projecting through a hole in the carriage frame member 405. In order to slide the carriage out therefore, this lever must be rocked anticlockwise, and when this has been done the motor starting key cannot be depressed. This is effected by the oscillation of shaft 258 placing the end of a lever 520 beneath a lug 522 of an arm 523. This arm is rocked from the motor release shaft so that if the end of the lever 520 is below the lug this shaft cannot be released and the motor cannot be started. The lug 522 may also be obstructed by the upper end of a bell crank lever 528 the lower and heavier arm of which is normally supported by the paper band. When the band is absent therefore, the lever turns and the motor release shaft cannot be turned. The paper-receiving roll comprises a tube 440, Fig. 22, removably mounted and frictionally driven at one end by means of a pair of flanged sleeves 455, 459 slidably connected together and caused by a coiled spring between them to press against flanges rotatable with the roll. The driving gear-wheel 458 is fixed to the flanged sleeve 455 and is driven from the pin roller 243. A similar friction mounting is provided for the supply roll. The record band is maintained in contact with the wheels 242, 243 by pressure rolls 491 carried by spring-controlled levers 494 adapted to be rocked by a handlever to disengage the rolls from the band when the carriage is to be slid out. The pin roller 243 is prevented from moving when the carriage is out of the machine by means of a three-armed latch-lever adapted to engage a notched disc on the roller hub except when the lever is deflected by an abutment stud in the machine.